First off we got a b18c1 in a 97 civic dx. Problems are loopey idel and v-tech stopped working, at every stoplight its going from 1000 to 2000 and sometimes a little higher. I think the problem may be a vacum leak. There is a loud hissing noise that sounds like it is coming off of the fuel rail opposite of were the fuel goes into the rail. Problem is i flexed all the hoses i could find, felt every connection for air blowing or sucking, and i still cant find out were this hissing noise is coming from, so how exactly do i find it. Could that hissing be a fuel injector, as far as i know all the fuel injectors are working properly cause every cylinder is firing. After the swap my cel came on and it was an O2 sensor on the downpipe, but it didnt affect the car at all so i didnt worry about it. How many O2 sensors are there on my car and were exactly are they at, and could they be causing the loopey idel all of the sudden, even if they were already throwing a cel and the car was running perfectly. Vtech dosnt kick in at all anymore and i dont know why. I dont know to much about the vtech so i havnt done anything to diagnose that problem. But i want my vtech back and i need your help people. I see two plugs on the vtech and they been unplugged and plugged back in so it's not a loose connection with the plugs. Is there a way i can tell if vtech is trying to kick in (a clicking or a noise of some sort.) Is there maybe a fuse or something that controls the vtech. Any suggestions on these two matters would be greatly appreciated, and please leave detail so i totaly understand what your refering to. Oh yea what is a TP.